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Test Name:
Norovirus, by EIA, Feces


  • SBMF No:
    45081
  • Performance Lab Name:
    Focus Diagnostics
  • Test Mnemonic:
    NLV EIA
  • ABN:
    Required – Not FDA-Approved
  • CPT Code:
    87449
  • LOINC Code:
    19146-0
  • Ref Lab Test No:
    81106 (Quest# S50450)
  • Also Known As:
    Norwalk-like Virus (NLV)
    Small Round Structured Viruses (SRSV)
  • Also See:
    45270 Norovirus Group 1 & 2 Detection, by RT-PCR
  • Spec Type:
    Feces
  • Spec Container:
    Sterile plastic container with tightly fitting lid (no preservative)
  • Pref Vol:
    2.0 g
  • Min Vol:
    1.0 g
  • Spec Collect:
    Routine random feces collection
  • Spec Store Transport:
    Frozen
  • Spec Stability:
    48 hours refrigerated (2-8°C)
    12 months frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles
  • Methodology:
    Enzyme Immunoassay (EIA)
  • Use:
    Diagnose norovirus associated gastroenteritis
  • Clinical Significance:
    Norovirus, also called Norwalk-like virus, is a major cause of viral gastroenteritis and has been associated with many close-contact outbreaks including in hospitals, schools, cruise ships, and residential homes. Detection of Norovirus antigen is important for patient and public health management and helps to provide diagnosis of the gastroenteritis. A positive EIA result indicates the presence of Norovirus antigen, but does not differentiate genotype 1 and 2.
  • Reference Range:
    Norovirus, EIA
    Negative
    Interpretive Data:
    A Positive result indicates the presence of Norovirus antigen, but does not differentiate genotype 1 and 2. Other potential gastrointestinal pathogens may sill be present. A Negative result does not fully exclude the presence of Norovirus or infection. Results should always be interpreted in combination with the full clinical picture.
  • Additional Test Info:
    This test is referred through Quest Diagnostics Nichols Institute.
  • Day Run:
    Mon, Wed, Fri
  • Time Reported:
    Same day
    This is a sendout test. Please note that turnaround time is defined as the anticipated time from set up day to results release.
  • Test Type:
    FECES

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